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United States Patent | 6,197,614 |
Ho | March 6, 2001 |
A new method is provided for packaging high-density IC semiconductor devices. A metal substrate is provided, a layer of dielectric is deposited over the first surface of the metal panel. One or more interconnect layers are then created on top of the dielectric layer, the interconnect layers, which can be thin film interconnect layers, are patterned using maskless exposure equipment. One or more cavities are created in the second surface of the metal panel; openings through the layer of dielectric are created where the layer of dielectric is exposed in the openings in the metal substrate thereby providing points of electrical contact to the second surface of the interconnect substrate. Holes are created in the first surface of the interconnect substrate thereby providing points of electrical contact to the first surface of the interconnect substrate. Bare semiconductor devices and/or packaged semiconductor devices can be attached on one or both sides of the interconnect substrate. Connector pads on the first surface of the interconnect substrate can be used to insert the substrate into a connector socket.
Inventors: | Ho; Chung W. (Monte Sereno, CA) |
Assignee: | Thin Film Module, Inc. (Taoyuan Hsien, TW) |
Appl. No.: | 467120 |
Filed: | December 20, 1999 |
Current U.S. Class: | 438/108; 257/691; 361/762 |
Intern'l Class: | H01L 021/44 |
Field of Search: | 438/107,108,118,122,706,622,125 257/701,758,691 361/762 174/252,256 |
5220489 | Jun., 1993 | Barreto et al. | 361/400. |
5485038 | Jan., 1996 | Licari et al. | 257/758. |
5505320 | Apr., 1996 | Burns et al. | 216/13. |
5509553 | Apr., 1996 | Hunter, Jr. et al. | 216/13. |
5525834 | Jun., 1996 | Fischer et al. | 257/691. |
5724232 | Mar., 1998 | Bhatt et al. | 361/762. |
5804422 | Sep., 1998 | Shimizu et al. | 438/125. |
5830563 | Nov., 1998 | Shimoto et al. | 428/209. |
5837427 | Nov., 1998 | Hwang et al. | 430/312. |
5877551 | Mar., 1999 | Tostado et al. | 257/701. |
5895581 | Apr., 1999 | Grunwald | 216/13. |